Question-and-Answer Session
Operator
Thank you. (Operator Instructions). And our first question comes from the line of Paul Silverstein at Credit Suisse, please proceed.
Paul Silverstein - Credit Suisse
Thank you, a couple of clarifications before a real question. On the customer concentration, did you all tell us, what are those two 10% customers accounted for the aggregate?
Paul Brauneis
Yeah, we don't do that on the quarterly basis Paul.
Paul Silverstein - Credit Suisse
Okay, and so is the first one, but book-to-bill can you give us some sense for how much less than one? Was it slightly less than one? Was it even less than one?
Paul Brauneis
Yeah, again we don't comment on the exact ratio but?
Paul Silverstein - Credit Suisse
I'm not asking for the exact.
Paul Brauneis
I think its fair to say it was slightly less than one.
Paul Silverstein - Credit Suisse
Thank you, I appreciate that. So for the question, Dan in terms of customer activity that you see in the market place on the switching side, forgetting about the multiservice access. Can you give some qualitative commentary in terms of what you are saying, whether in public RPs or privately negotiated deals, can you just give us some sense for how activities looks today versus 30 days ago, versus a year ago?
Dan Smith
Yeah, I think qualitatively, we think that there is a more activity at this point of time than there was at those time frames. But again I caution you that these are large projects, which take a long time to come to fruition.
Paul Silverstein - Credit Suisse
Then you would attribute the increase in activity, is this just the general trend of carriers recognizing the virtues of a meshed architecture versus bidirectional line switch rings or is it something more than that?
Dan Smith
I think its the recognition, the value of mesh architecture, is part of it to be sure. I think carriers are also very interested in some of the inflation points that are coming up and I think that that’s causing a work to be undertaken in that regard looking not only in the current timeframe but for the future.
Paul Silverstein - Credit Suisse
Dan, can I ask you a related question and I will stop here. But if I look at your existing customer base Vodafone and NTT et cetera. Can you give us some sense for what the history has been on follow on business versus the initial foot print? I understand you don't want to disclose any one customer, but generally speaking can you give us some sense for how much revenues flowed following your initial footprint build out from requirements for new capacity for additional nodes et cetera?
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